2021 BMW R 18

Engine and transmission

Displacement1802.0 ccm (109.96 cubic inches)

Engine typeTwo cylinder boxer, four-stroke

Engine detailsPolished aluminum cylinder covers

Power91.0 HP (66.4 kW)) @ 4750 RPM

Torque157.3 Nm (16.0 kgf-m or 116.0 ft.lbs) @ 3000 RPM

Top speed178.6 km/h (111.0 mph)

Compression9.6:1

Bore x stroke107.1 x 100.0 mm (4.2 x 3.9 inches)

Valves per cylinder4

Fuel systemInjection. Electronic intake pipe fuel injection

Fuel controlDouble Overhead Cams/Twin Cam (DOHC)

IgnitionBMS-K+ electronic engine management with overrun cut-off and twin-spark ignition

Cooling systemOil & air

Gearbox6-speed

Transmission typeShaft drive (cardan) (final drive)

ClutchSingle-disc dry

Emission detailsRegulated three-way catalytic converter

Chassis, suspension, brakes and wheels

Frame typeDouble-cradle steel

Rake (fork angle)22.7

Trail150 mm (5.9 inches)

Front suspensionTelescopic fork

Front wheel travel119 mm (4.7 inches)

Rear suspensionSteel swingarm with central shock strut

Rear wheel travel89 mm (3.5 inches)

Front tire120/70-R19

Rear tire180/65-B16

Front brakesDouble disc. 4 piston fixed calipers

Diameter300 mm (11.8 inches)

Rear brakesSingle disc. 4 piston fixed calipers

Diameter300 mm (11.8 inches)

WheelsWire spoked

Physical measures and capacities

Dry weight345.2 kg (761.0 pounds)

Power/weight ratio0.2636 HP/kg

Seat height691 mm (27.2 inches) If adjustable, lowest setting.

Overall height1125 mm (44.3 inches)

Overall length2441 mm (96.1 inches)

Overall width965 mm (38.0 inches)

Wheelbase1730 mm (68.1 inches)

Fuel capacity16.01 litres (4.23 US gallons)

Reserve fuel capacity3.79 litres (1.00 US gallons)

Other specifications

Color optionsBlack

StarterElectric

ElectricalPermanent magnet generator 600 W. 12 V / 26 Ah, maintenance-free.